HDDS-10233. Apache Release Manager Guide (#66)

* HDDS-10233. Apache Release Manager Guide

source: https://cwiki.apache.org/confluence/display/OZONE/Ozone+Release+Guideline

Co-authored-by: Elek Márton <elek@apache.org>
Co-authored-by: Ethan Rose <erose@apache.org>
Co-authored-by: Sammi Chen <sammichen@apache.org>
Co-authored-by: mingchao zhao <captainzmc@apache.org>
Co-authored-by: Yiyang Zhou <yiyang0203@apache.org>

* highlight bash syntax

* convert leftover HTML entities

* empty lines around headings

* Apply suggestions from code review

Co-authored-by: Ethan Rose <33912936+errose28@users.noreply.github.com>

* remove leftover HTML tags

* trivial formatting fixes

* vote email

* vote email fixup

* fix Example

* Fix staging repositories link

Co-authored-by: Ethan Rose <33912936+errose28@users.noreply.github.com>

* Clarify steps for publishing Docker Image

Co-authored-by: Ethan Rose <33912936+errose28@users.noreply.github.com>

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Co-authored-by: Elek Márton <elek@apache.org>
Co-authored-by: Ethan Rose <erose@apache.org>
Co-authored-by: Sammi Chen <sammichen@apache.org>
Co-authored-by: mingchao zhao <captainzmc@apache.org>
Co-authored-by: Yiyang Zhou <yiyang0203@apache.org>
Co-authored-by: Ethan Rose <33912936+errose28@users.noreply.github.com>